Bently Nevada 330105-02-12-05-02-01 3300 XL 8 mm Reverse Mount Probes

Overview

The Bently Nevada 330105‑02‑12‑05‑02‑01 is an 8 mm reverse‑mount proximity probe designed for high‑temperature and space‑restricted installations. As part of the 3300 XL transducer family, this probe provides accurate non‑contact measurement of shaft vibration and position in fluid‑film bearing machinery. The ETR (Extended Temperature Range) configuration enables operation in environments where standard probes cannot withstand thermal stress.

Functional Characteristics

This reverse‑mount probe uses an 8 mm tip and a 3/8‑24 UNF threaded body, allowing installation from inside the machine case toward the shaft. The –12 suffix indicates a 12‑inch high‑temperature integral cable, while the –05 suffix specifies a 0.5‑meter lead length to the ClickLoc connector. The cable and connector materials are engineered to maintain signal integrity under elevated temperatures.

When paired with a matching 3300 XL extension cable and Proximitor sensor, the 330105‑02‑12‑05‑02‑01 delivers standard 3300 XL sensitivity (typically 8 mV/μm). In ETR configurations, system accuracy is limited to ETR specifications, but full compatibility with standard 3300 XL components is maintained.

Key Features

• 8 mm reverse‑mount eddy‑current proximity probe

• Extended Temperature Range (ETR) design for high‑heat environments

• 12‑inch high‑temperature integral cable

• 3/8‑24 UNF threaded body for reverse‑mount installations

• ClickLoc miniature coaxial connector for secure mating

• Compatible with 3300 XL extension cables and Proximitor sensors

• Suitable for Keyphasor, speed, and radial vibration measurements

• Designed for gas turbines, steam turbines, and high‑temperature rotating equipment

Technical Specifications

Application Scenarios

• Gas turbine bearing vibration monitoring

• Steam turbine supervisory instrumentation

• High‑temperature compressor applications

• Keyphasor reference and speed measurement

• Machinery protection systems requiring ETR‑rated components

FAQ

Q: Does this model include the Proximitor sensor A: No. This model includes the probe with integral cable; the Proximitor sensor is purchased separately.

Q: What does the “–12” suffix indicate A: It specifies a 12‑inch high‑temperature integral cable.

Q: Can this probe be mixed with standard 3300 XL components A: Yes. It is fully compatible, though system accuracy will follow ETR specifications.